Optimal quantum teleportation with an arbitrary pure state

被引：76
|
作者：
Banaszek, K
机构：
[1] Univ Rochester, Ctr Quantum Informat, Rochester, NY 14627 USA
[2] Univ Rochester, Rochester Theory Ctr Opt Sci & Engn, Rochester, NY 14627 USA
[3] Univ Warsaw, Inst Fiz Teoret, PL-00681 Warsaw, Poland
来源：
PHYSICAL REVIEW A | 2000年 / 62卷 / 02期
基金：
美国国家科学基金会;
关键词：
D O I：
10.1103/PhysRevA.62.024301
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We present an elementary derivation of the maximum fidelity attainable in teleportation using a single copy of two d-level systems in an arbitrary pure state. This derivation provides a complete set of necessary and sufficient conditions for optimal teleportation protocols. We also discuss the information on the teleported particle that is revealed in course of the protocol using a nonmaximally entangled state.
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页数：4
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